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Messages - Chip

LazyCam (Beta) / Re: Circles from Lcam to Mach 3
« on: June 18, 2008, 01:34:32 PM »
Hi, kevoler

I loaded your dxf and posted it, It looks fine hear, See below.

What ver of Mach & LazyCam are you using, Look under Help, "About" in both.

Using Mach R3.041 & LC 3.00.2 hear.

Let Us Now, Chip

LazyCam (Beta) / Re: Circles from Lcam to Mach 3
« on: June 18, 2008, 02:28:25 AM »
Hi, kevoler

Use the REPLY button hear and attach your example DXF file

Thanks, Chip

General Mach Discussion / Re: First cut problems
« on: June 17, 2008, 05:23:51 PM »

Nice talking with you about your Mill, Will work on getting you going.

Thanks, Chip

General Mach Discussion / Re: First cut problems
« on: June 17, 2008, 02:20:12 AM »

The start of Roadrunner file: Starts at lower left x0 y0, Size is x 7.7282 y 6.3797 (You can see these values on Tool-Path & Diag. Screens top right.

This G-code file doesn't require a tool setup, Best I can See.

Best cutter to use is a V engraving cutter, Jog to a  x, y, position that allows enough +x,+y room on your table and Zero X, Y axises.

Jog Z to about 0.060 above top of material, Zero Z axis, this will give you a .040 cut depth.

Rapids will be z +0.200 and cut depth z -0.100 (-0.040 cut in material with cutter zeroed at 0.060 above material).

As "Sid" stated without lic. 500 lines of G-code will be executed, But it went to line 1160, Not sure what caused that to happen.

F60.000000 ; sets feed-rate to 60.0 inch per min for G01,02,03's and G00's at your velocity setting unless the FRO % is in over-ride.
G0 X0.000000 Y0.000000 Z0.200000 ; First move Z up to + 0.200
M3 ; Spindle ON

S60.000000 ; Spindle speed 60.0, If you have spindle speed feedback you will want to edit this to a faster speed.

G43H5 ; Apply tool lenth offset + to H5, Don't think you have tools set up, should have no effect
G0 X0.000000 Y0.000000 Z0.200000 ; Redundant line
G0 X1.179950 Y4.004260 Z0.200000 ; position to start for cut
G1 X1.179950 Y4.004260 Z-0.100000 ; Z down to -0.1000
G1 X1.179950 Y4.004260 Z-0.100000 ; Cut continues

Hope this Helps, Chip

General Mach Discussion / Re: Matching Dros
« on: June 16, 2008, 05:38:40 PM »

I'm sorry this has turned into a Mathmatical/Threory Class.

For Sure You Can Calibrate any Axis without knowing anything about the BallScrew Pitch or Reduction/Gearing.

Mach shows on it's DRO's to .0001 ackuracy, But in fact it retaines a .000000000000001 "15" dec. point's or so I Think, Precision Accuracy (The Remainder is "Applied" to the "Closest Step Per" Unit as setup in Motor Tuning.

In my last post I was trying to help you find out If you have Backlash Issues Also.


Using the 20,967 that's Giving you a 1 inch move.

Move the axis "pos" 1 inch "Pre-Load", (It takes backlash out, If there is any.

Then zero the indicator and your linear scale DRO, Move in the pos dir 1 inch.

Dose the indicator show a 1 inch move. ? _____________

Dose the linear scale "DRO" show a 1 inch move. ? _______________

Dose the Mach show a 1 inch move. ? ______________

Now move the other direction 1 inch.

Does the indicator move back to Zero, ? _________

Dose the linear scale "DRO" show a 1 inch move. ? __________

Dose the Mach show a 1 inch move. ? ________

If the indicator dosen't return to 0, The distance to go is "Backlash".

Thanks, Chip

General Mach Discussion / Re: Control jogging speed
« on: June 15, 2008, 02:09:42 AM »
Hi, Sheldon

These settings are easy to get confused.

Slow-Jog-Rate is in % of your "G00" speed (Which is the "Velocity" setting in Config, Motor Tuning).

Shift + Arrow Key is (100 % Slow-Jog-Rate) or G00 (Which is the "Velocity" setting in Config, Motor Tuning).

Feed-Rate is inch/mm/Units per minute. 

Pic 1, Shift+Arrow 100 % Velocity setting.

Pic 2 Arrow key Slow-Jog-Rate 1 % "Velocity" setting.

Hope this Helps, Chip

General Mach Discussion / Re: Starting from Zero, need advice
« on: June 15, 2008, 12:19:37 AM »
Hi, RChadwick

Axis direction can be changed in Config, Home & Limits "Reversed".

Mach has no formal feed-back, It relies on proper use of G00 moves (Velocity and Acceleration settings) and G01,02,03 moves with F speeds set correct to not miss steps.

Hears a link to Mach3 manual it covers allot programing info. http://www.machsupport.com/docs/Mach3Mill_1.84.pdf for a start.

Hope this Helps, Chip

General Mach Discussion / Re: Matching Dros
« on: June 14, 2008, 11:21:37 PM »

Use the 20,967 that gives you a 1 inch move in the Pos direction ( x0 to x1 pre-load, zero the indicator, then x1 to x2 (20,976) 1 inch) OK.

Now move back to x1, Does the indicator move back to Zero, If not the distance to go is "Backlash".

You'll need to Enable Backlash, Config, "Backlash" or find out where the slop is.

Not to Bad 17 post's, 2 fwd, 1 back, 2 fwd, 1 back, Won't be long now.

Let us Now, Chip

General Mach Discussion / Re: Setup problem
« on: June 14, 2008, 12:02:58 AM »
Hi, Jeff

Read this topic it may help with your issues, http://www.machsupport.com/forum/index.php/topic,6837.10.html

Been tied up hear.

Thanks, Chip

Hi, GTRacer

Your Z axis Velocity and Acceleration may be set to high in Motor Tuning.

The G00 Z.25 moves at "max vel & accl" values in motor tuning.

Run the Att. G-code file I changed your G00 Z.25 to G01 Z.25 F40.